The first two are old school soldering irons. You'd put the whole thing in the fire to get it hot and then touch it to what you wanted to solder. The heat from the iron heats the part and melts the solder. These were also use for leading in flashings, pipes, etc.
Until the electric soldering irons were made,this is how most soldering was done,with a pump up blow torch, or a gas heater(think stove top). Wives were not happy when this cluttered up the stove.